Operating means for pumps.



= PATENTED NOV. 15, 1904.

v 0. F. MAYER. 4 OPERATING MEANS FOR PUMPS.

APPLICATION FILED APR. 29, 1904.

N0 MODEL.

UNITED STATES Patented November 15, 1904.

PATENT OFFICE.

CHRISTIAN MAYER, OF MILLERSVILLE, PENNSYLVANIA, ASSIGNOR TO PENNSYLVANIAPNEUMATIC PUMP COMPANY, OF DAVENPORT, IOWA. A CORPORATION OF ARIZONATERRI ORY.

OPERATING MEANS FOR PUMPS.

SPECIFICATION forming part of Letters Patent No. 774,919, dated November15, 1904.

Application filed April 29, 1904.

T (LZZ Lu/tom it nuty concern:

Be it known that I, CHRISTIAN F. MAYER, a citizen of the United States,and a resident of Millersville, in the county of Lancaster and State ofPennsylvania, have invented certain new and useful Improvements inOperating Means for Pumps; and I do hereby declare that the following isa full, clear, and exact description of the same, reference being had tothe accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to improvements in operating means for pumps andis shown. more particularly in relation with a suction and force pump.Heretofore while hand-actuated means for the operation of pumps haveassumed many forms it has usually occurred that the effective force hasvaried at different .parts of the stroke. .It has also frequentlyoccurred that the wear and the lost motion due from wear of the partshas frequently seriously affected the utility of pump-operating means. 3g

I am aware that pumps have been heretofore operated by means of arack-bar and toothed segment; but in the prior constructions adequateprovision has not been made for adjustment and to compensate for thewear of the mechanism. The object of this invention is to provide aconstruction admitting adjustment of the pump to any desired height andafiordin'g a one-piece unitary pumphead thereon, through whichreciprocates the pump-rod, and to provide adjustable means on saidpump-head coacting with complemental means upon the pump-rod foroperating the pump, and so constructed as to enable the operating meansto be quickly ad- 4 justed to compensate for the wear due to operation.

The invention consistsin the matters here: inafter described andmorefully'p'ointed out and defined in the append claims.

Figure 1 is a pump provided with a pumphead and operating meansembodying my in- Vention, showing the latter in side elevation. Fig. 2is a front elevation, partly broken, of

Serial No. 205,499- (No model.)

depth and the upper end thereof cut and threaded to afford a desiredheight above the ground or platform f. The base portion a is slippedover the pipe and secured in place with a set-screw a and bolted orscrewed to the platform. Adjustably secured on said pipe is a collar orsleeve (4 with which is con nected a brace a of the usual or any desiredkind, which extends diagonally from said pipe and at its lower end islikewise secured I. to the platform. An air-chamber A, provided with aspout a, has threaded connection with the upper end of said pipe and maybe provided with any interior valve mechanism (not shown) of the usualor any desired type to enable said pump to be used as a lift-pump orforcepump, as preferred. Said air-chamber A is provided on its uppersideand concentric with the axis thereof with a flanged base a andextending upwardly through the pipe A of the air-chamber A and axiallythrough the base-flange a is a pumprod B. Secured on said flange-base ais a pump-head C, comprising a one-piece open casting having at thelower end a flat face through which on opposite sides thereof areprovided segmentally slotted apertures, as shown in Fig. 4:, adapted toreceive bolts 0,

engaged in said base-flange (4 whereby said pump-head can be adjustedwith respect to the spout a to any desired position. The pump-rod B alsoextends'through said pumphead, which is provided at its top' with anaperture to afford a bearing for the upper end thereof and is providedcentrally in its base 0 with a threaded aperture adapted to receive thefollower-nut 0 adapted to jam packing of any suitable kind or materialupon the base-flange a aifordinga gland for the pump- 7 rod.

diate the base 0 and the top of said pumphead with a rack-bar C, rigidlysecured therei on, but adjustable as to height, and provided at each endwith a clamping-yoke c, which engages the rod B and the ends of whichare drawn lirml y together by means of a bolt 0 extending theretln-ough,as shown more fully in Fig. 4. The face of said rack-bar is planed oneach side of the rack to afford a straight-edged face 0 on each sidethereof, beyond which the teeth project, and a pinion (f is journaled inlaterally-extended arms c of each pump-head and meshes with saidrack-bar, as shown in Figs. Qand 3, and is provided at its periphery, ateach side of the teeth thereof, with a plain band 0", which tracks uponthe plane lateral portion of said rack-bar and serves as a guidetherefor and to force the pump-rod at the rear of said rack-bar againsta roller D, journaled on said pump-head, and between which and thepinion the pump-rod reciprocates. Said pinion C as shown, is operated bya le ver or handle D, provided with a counterweight al at its extremity.As shown, said handle at its upper end is slotted and engages over thepinion and is secured thereto by bolts which extend through registeringapertures in said handle and said pinion. For the purpose ofcompensating for wear should such occur said pinion is provided indifferent radial lines with a plurality of apertures in any of whichsaid handle may be engaged, so that should one portion of the pinionbecome worn through use it is only necessary to remove the handletherefrom, adjust the pinion to bring a different wearing-surface inengagement with the rack, and again secure the handle by means of boltspassing through suitable apertures to said pinion. In a like manner therack-bar may be adjusted vertically on the pump-rod by releasing thebolts 0 which secure the rack, and sliding said rack up or down therequired distance. If preferred, also, a pinion corresponding with thepinion C may be substituted for the roller D and a handle connectedtherewith, as before described. WVhen so constructed, a rack-bar isprovided on each side of the pumprod, and the pump may be actuated byeither or both of said pinions. hen operated singly, however, the innerbolt from the pinion not in use may be removed from the handle notoperated, thus permitting the said handle to depend upon the pinion.

The operation is as follows: The pump-head may be adjusted to anydesired height when first installed by cutting the tube A to the desiredheight above the platform, securing the pump head thereon, as beforedescribed. Should it be desired at any time to reduce the height of thepump, the said pump-head and air-chamber be removed and a portion cutfrom the upper end of the pipe, the upper end threaded and the pump-headagain re- Said pump-rod B is provided intermel turned to positions, thusenabling the construction to be arranged at any suitable height forconvenient operation.

From the construction described the pumphead 0 is capable of adjustmentby releasing the bolts 0 and rotating the pump-head partly upon thebase-flange a and again securing the bolts. into engagement therewith.It is thus possible to arrange said head to afford the most convenientposition for the operator when pumping. Inasmuch as the pinion (J bearspositively with its lateral rims or bands 0 against the plane track 0"of the rack, the teeth of the pinion and rack though intermeshing do notreceive as much wear as would otherwise be the case. The raclcbar andthe pump-rod being supported on the rear side from said pinion, thepump-rod is reciprocated Vertically at all times, with the upper andlower bearings and the bearing afforded between the pinion and roller Din perfect alinement. The counterweight on the handle of course isdesigned in part to balance the weight of the pump-rod and the column ofwater supported thereon and greatly reduces the labor of pumping. It isalso evident that inasmuch as the bands 0 are engaged on each side thepinion at the periphery of the teeth the notches intermediate the teethopen through the pinion below said band, thus affording ready escape ofmoisture and preventing the pinion filling with ice in cold weather.

Obviously many details of construction may be varied without departingfrom the principles of this invention.

I claim as my invention 1. In a lifting and force pump, a one-piece pumphead adjustably secured thereon, a pump-rod extended therethrough, arack-bar adjustably engaged on said rod, a bearingface on each side ofsaid rack-bar, a pinion journaled on said head in position to engagesaid rack-bar, a peripheral band on both sides of said piston extendingbeyond the teeth thereof adapted to bear on the bearing-faces of saidrack-bar and means for changing the point of contact of said pinion onsaid rackbar comprising a plurality of sets of radiallydisposedapertures through said pinion and a handle adapted to engage any of saidsets of apertures.

2. In a pump of the class described, a onepiece pump-head adapted to beadjustably secured upon a pump or the like, a pump-rod having upper andlower hearings in said pumphead and reciprocating therethrough, arackbar adjustably secured on said pump rod within the pump-head,lateral plane faces on said rack-bar between which the teeth project, apinion rotatively journaled on said pump-head and intermeshing with therackbar, a band on one or both sides of said pinion bearing against theplane faces of the rackbar and through which the meshes of the pinionopen, said pinion having a plurality of IIO radially-disposed aperturestherein and a handle or operating-lever adapted to be rigidly engaged tosaid pinion by means of bolts eX- tending to any of said radialapertures and a counterweight on the end of said lever.

3. A combination of a pump of an integral pump-head secured thereon bymeans aifording partial rotation of the same with respect to the pump, apump-rod reciprocating therethrough and having hearings in the upper andlower end of said pump-head, a stuflingbox in the lower of saidbearings, a rack-bar, clamping means at each end thereof adapted toadjustably engage the same to the pumprod, a plane bearing-surface oneach side of said rack-bar for approximately the entire length thereofand beyond which the teeth pro ect, a pinion having a bearing-face oneach side thereof projecting beyond the teeth of the pinion, the teethof said rack-bar intermeshing with those of said pinion while thebearing-faces thereon engage on the plane faces of the rack-bar, ahandle adapted to be secured on said pinion at any one of a number ofradially-disposed positions thereby adapting the pinion to be shifted inthe event of wear, a roller disposed behind the pump-rod against whichthe same is forced by said pinion and a counterweight on the end of thepump handle adapted to compensate the weight of the pump-rod andsupported column of water.

In witness whereof I have hereunto subscribed my name in the presence oftwo subscribing witnesses.

CHRISTIAN F. MAYER.

Witnesses:

CHAS. E. LONG, GEO. W. AsPER.

